如何使用Go newRequest方法

Question

So, I've just started with Go and I'm trying to learn HTTP package. I found this program on the internet

headers := make(map[string]string)
headers["authorization"] = "1432536546" //the auhorization string

url :=    "anUrl\"

req, err := http.NewRequest("DELETE", url, headers)
if err != nil {
    panic(err)
}

But it is wrong, as it appears you can't use maps like this as they don't implement the io.Reader interface:

  cannot use headers (type map[string]string) as type io.Reader in argument to http.NewRequest:
  map[string]string does not implement io.Reader (missing Read method)

This is one of the first code snippets I tried, I actually got it from what I thought to be a reliable source, and obviously it doesn't compile. Go looks pretty interesting, but it has pretty much zero tutorials and useful documentation... Please help me, what is the right way to do it?

Answer 1

The third parameter is Body, which is used in POST requests. It is not for headers. To add headers,

req, err := http.NewRequest("DELETE", url, nil)
if err != nil{
    panic(err);
}

req.Header.Add("Authorization","1432536546") //string, string

The Go documentation does provide several examples. This one is the first example in the Overview section.